Peter Hartmann's Blog (11)

Latest LOAD Likes!

Introduction:

Assume the following scenario:

  1. Application delivers files as LOAD input for a partitioned table space which contains already data. The files have a naming convention, e.g. name.IN01, …IN02 etc., which means records from file IN01 go into partition 01 etc. Unfortunately, some records are not assignable by the application, so there is an extra file named IN99 with…
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Added by Peter Hartmann on July 29, 2020 at 13:37 — No Comments

AUTOBIND - Demystified - 2

Introduction:

AUTOBIND is a very useful automation instrument inside the Db2 engine.

Recently there are 2 enhancements in this area. For the first enhancement refer to my blog post.

The second enhancement is described in this blog post and was introduced by…

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Added by Peter Hartmann on April 17, 2020 at 7:38 — No Comments

Db2 for z/OS support of z15 and z/OS 2.4

Toleration:

Is maintenance needed in Db2 for z/OS (V11 or V12) for a migration to

- the current hardware z15

- or the current operating system z/OS 2.4 ?

As of today there are no APARs/PTFs needed to tolerate such a migration.

Exploitation:

The following…

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Added by Peter Hartmann on November 19, 2019 at 7:55 — 2 Comments

Db2 and JCL 72 characters

Introduction:

Sometimes it is useful to generate JCL executable code for //SYSIN via SQL mass operations, e.g. change specific tables from one option to another. If the result row fits into one JCL line with a length of 72, then all is fine. If the line must be split, then the question comes up: How to split?

Here is a solution for commands (like REBIND PACKAGE), SQL (like ALTER TRIGGER) or…

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Added by Peter Hartmann on August 28, 2019 at 18:39 — 1 Comment

AUTOBIND – Demystified – 1

Introduction:

AUTOBIND is a very useful automation instrument inside the Db2 engine.

Suppose you change the definition of the table or index and these changes have impact on the dependent package, the static SQL package is marked as invalid,…

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Added by Peter Hartmann on August 20, 2019 at 19:29 — No Comments

APPLCOMPAT and Advanced Triggers

If you think you know all about APPLCOMPAT, then please read this!

Introduction:

Advanced triggers introduced in V12 allow SQL PL statements and this opens “SQL only applications” to triggers. There is reduced need to call a stored procedure,…

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Added by Peter Hartmann on August 7, 2019 at 11:13 — No Comments

Group Buffer Pool - Changes by PH13045

Level setting:

A Db2 group buffer pool (GBP) consist of two parts:

1) Directory entries

2) Data entries

For each data entry there must be an associated directory entry in the GBP.

A directory entry can exist without a data entry in the…

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Added by Peter Hartmann on July 30, 2019 at 12:27 — 2 Comments

Function level V12R1M504 and e.g. archive tables

V12R1M504:

With APPLCOMPAT V12R1M504 on e.g. SPUFI or DSNTEP2, one can no longer create segmented or classic partitioned table spaces. See knowledge center for this restriction.

A small marginalia is behind this restriction, if this is combined with another…

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Added by Peter Hartmann on July 19, 2019 at 9:57 — 1 Comment

RUNSTATS sampling enhancements

Introduction:

One of the major challenges for RUNSTATS is the sampling of the data rows e.g. for calculation of the COLCARD value in SYSIBM.SYSCOLSTATS and SYSIBM.SYSCOLUMNS.



The challenge is to balance the CPU resources used by RUNSTATS to calculate column cardinalities with high accuracy…

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Added by Peter Hartmann on July 17, 2019 at 10:38 — 1 Comment

Retrieval of current DSNZPARM and DSNHDECP settings

History:

With DB2 Version 9.1 for z/OS a new system supplied stored procedure SYSPROC.ADMIN_INFO_SYSPARM was delivered. As the name suggests, this routine can be called to obtain the current settings of the Db2 subsystem parameters (DSNZPARM) and the…

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Added by Peter Hartmann on July 16, 2019 at 8:04 — 6 Comments

Asynchronous cross-invalidation (XI) for coupling facility (CF) cache structures, e.g. Db2 for z/OS group buffer pools (GBP)

Description of the new feature:

When Db2 in a data sharing environment writes a changed page to the GBP the same page in the buffer pool(s) of the other member(s) must be invalidated to avoid back level data access in this/these member(s). This invalidation is done by the cross invalidation (XI) feature which is a key functionality of data sharing and controlled by coupling facility…

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Added by Peter Hartmann on July 12, 2019 at 7:57 — No Comments

Events

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*NEW* Db2 12 Technical workshop, REGISTER NOW LIMITED PLACES

Get a head start by registering for this *NEW* Db2 12 Technical workshop, Hosted by John Campbell - IBM DE and Anthony Ciabattoni from the IBM Db2 SWAT Team.Secure your seats today http://ibm.biz/Db212TechnicalWorkshopFeb 9th and 10th 2021#db212  #Db2 #AI #Data #Analytics #ML #HybridJohn Campbell and Anthony CiabattoniJohn…See More
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IBM Db2 Analytics Accelerator Trends and Directions at ET

February 16, 2021 from 11am to 12pm
Register Today! Whether you are an existing Db2 Analytics Accelerator user or considering becoming one, you won’t want to miss this webcast! Join Daniel Martin, STSM, IBM Db2 Analytics Accelerator Development to hear details on the newest Accelerator capabilities that drive even deeper integration with Db2 for z/OS. …See More
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IBM Db2 Analytics Accelerator Trends and Directions at ET

February 16, 2021 from 11am to 12pm
Register Today! Whether you are an existing Db2 Analytics Accelerator user or considering becoming one, you won’t want to miss this webcast! Join Daniel Martin, STSM, IBM Db2 Analytics Accelerator Development to hear details on the newest Accelerator capabilities that drive even deeper integration with Db2 for z/OS. …See More
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Modernize IBM Z Apps for Hybrid Cloud using APIs at webcast

January 11, 2021 all day
Available on-demand now, this webinar will show you how to provide access to curated, proven and high-performance applications by turning your existing IBM Z® assets into security-rich, consumable and managed APIs. You will also learn some key considerations on how to choose among the numerous API and integration solutions available. Click the link to watch:…See More
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Dec 17, 2020
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Modernize IBM Z Apps for Hybrid Cloud using APIs at webcast

December 16, 2020 to February 16, 2021
Available on-demand now, this webinar will show you how to provide access to curated, proven and high-performance applications by turning your existing IBM Z® assets into security-rich, consumable and managed APIs. You will also learn some key considerations on how to choose among the numerous API and integration solutions available. Click the link to watch:…See More
Dec 17, 2020
An event by Janttu Lindroos was featured

Finland Db2 User Group (FiDUG) Seminar at IBM Finland

December 10, 2020 from 9am to 5pm
More info will be available later on. Stay tuned.See More
Dec 4, 2020
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MDUG - Michigan Db2 User Group Seminar at Four Points by Sheraton, Novi

December 9, 2020 from 8:15am to 4pm
Check out our MDUG web site for upcoming Seminar details and past Seminar presentations, etc.:http://www.mdug.org/New to MDUG?Please see content underHome About MDUGFor Seminar Reservations, please review the MDUG site content under…See More
Dec 4, 2020
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Surprise in store! Join the Db2 for z/OS Spotlight session for REALLY new news from the lab at http://ibm.biz/MoTownsend_IBM2020

December 7, 2020 from 11am to 12pm
Surprise in store! Join the Db2 for z/OS Spotlight session for REALLY new news from the labIDUG EMEA 2020 Spotlight session Available today on replay  http://ibm.biz/MoTownsend_IBM2020 Db2 12 for z/OS® took Db2 to a new level, by extending the core capabilities and empowering the future. IBM extended the core with new…See More
Dec 4, 2020
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IBM Z and IBM Cloud Pak for Data - Better Together at Webcast - East Coast U.S. time zone

December 3, 2020 from 11am to 12pm
Register at http://ibm.biz/IBMZandBetterTogetherWoD.IBM Cloud Pak for Data is a fully integrated data and AI platform that modernizes how businesses collect, organize and analyze data and infuse AI throughout their organization. And now IBM has introduced IBM Cloud Pak for Data on IBM Z, a highly secure private cloud for your enterprise data that allows you to adapt, transform and compete more effectively. Join this webcast to learn how IBM…See More
Dec 4, 2020
Surekha posted an event
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Surprise in store! Join the Db2 for z/OS Spotlight session for REALLY new news from the lab at http://ibm.biz/MoTownsend_IBM2020

December 7, 2020 from 11am to 12pm
Surprise in store! Join the Db2 for z/OS Spotlight session for REALLY new news from the labIDUG EMEA 2020 Spotlight session Available today on replay  http://ibm.biz/MoTownsend_IBM2020 Db2 12 for z/OS® took Db2 to a new level, by extending the core capabilities and empowering the future. IBM extended the core with new…See More
Dec 4, 2020
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Nov 25, 2020
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IBM Z and IBM Cloud Pak for Data - Better Together at Webcast - East Coast U.S. time zone

December 3, 2020 from 11am to 12pm
Register at http://ibm.biz/IBMZandBetterTogetherWoD.IBM Cloud Pak for Data is a fully integrated data and AI platform that modernizes how businesses collect, organize and analyze data and infuse AI throughout their organization. And now IBM has introduced IBM Cloud Pak for Data on IBM Z, a highly secure private cloud for your enterprise data that allows you to adapt, transform and compete more effectively. Join this webcast to learn how IBM…See More
Nov 23, 2020
Massimo Verzì liked Adrian Collett's group DUGI - Db2 User Group Italia
Nov 20, 2020

Bringing Db2 enthusiasts together virtually. Expert or novice, distributed or mainframe, this is the place for everything DB2.

Forum

Replaying past database activities

Started by Shaun Hide in Security and DB2. Last reply by Alexander Dashevsky Nov 17, 2020. 1 Reply

I would need to know who modified table data on a certain day.I do have my backups and database logs available.DB2audit was however not activated at this point.How would i  be able to access this information?Continue

Tags: #DataAccess

Db2 is developer inclusive and preview of Db2 11.5.5

Started by Kip in What's hot ? Nov 4, 2020. 0 Replies

This digital event examines how enterprises can become smarter with a data management system that is developer-inclusive. During this session, participants will get to learn how Db2 integrates with a broad array of programming languages, employs…Continue

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